Questions about particular language features

These are questions like Dump Stack to Array, which is a question about a particular feature of CJam.

These might fit under Questions about improving code golf / code challenge skills, but on the other hand these might be more on-topic for Stack Overflow. However, as Dennis said:

[these types of questions would] get downvoted or, worse, left unanswered. If it's unlikely to get answered on SO, there really is no reason to post it there.

For: They won't be well-received on Stack Overflow, so this is probably the most relevant place to put them.

Against: Many of these are relatively simple questions that are covered in the docs; therefore, it's not useful to have them here.